confusing error message [wg data handling error: wrong field number given to wg_get_field #]

[aleksandergabriel]

I started to experience some error outputs regarding wg_get_field function. Error message reads like: wg data handling error: wrong field number given to wg_get_field 5, where number changes between 4, 5 and 6 as far as I can tell.
I assumed I was passing wrong field position integer to wg_get_field function, but after some line by line search with debugger I realized that parameters given to wg_get_field are correct and filed number is not connected to number in error message. Also after decoding field I get correct result.
Is number connected with some error code, or is there something else wrong that I am missing at the moment?

[priitj]

The number in the error message is the field number. In case of that error, the returned value should be WG_ILLEGAL which does not decode to anything.

I can look into it if you're sure that you are passing the correct parameters. But I would need a reproducible, short example from you.

[aleksandergabriel]

If I presume that error is printed out right after the call I am as sure as possible that position number passed to function is not the same as number in error. I will try to create small example where error would be reproduced and send it to you as soon as possible.

[aleksandergabriel]

Unfortunately so far I was unable to reproduce error with any example I wrote. Therefore I am back at debugging full code and trying to catch exact line where error is printed out. So if I understand correctly if wrong filednumber if given to wg_get_field function returns WG_ILLEGAL and if that is passed to wg_decode_<> it would produce error or would it return some error value?

[priitj]

I would recommend checking if wg_get_field() returns WG_ILLEGAL.

I know that the tutorial and maybe some other places contain lazy code where that check is not made but this is the most universal and safe way.